<template>
	<div class="child1">
	  <h3>子组件1</h3>
		  <h4>玩具：{{ toy }}</h4>
		  <h4>书籍：{{ book }} 本</h4>
		  <button @click="minusHouse($parent)">干掉父亲的一套房产</button>
	</div>
  </template>
  
  <script setup lang="ts" name="Child1">
	  import { ref } from "vue";
	  // 数据
	  let toy = ref('奥特曼')
	  let book = ref(3)
  
	  // 方法
	  function minusHouse(parent:any){
		  parent.house -= 1
	  }
  
	  // 把数据交给外部
	  defineExpose({toy,book})
  
  </script>
  
  <style scoped>
	  .child1{
		  margin-top: 20px;
		  background-color: skyblue;
		  padding: 20px;
		  border-radius: 10px;
	  box-shadow: 0 0 10px black;
	  }
  </style>

<style scoped>
	.child1{
		margin-top: 20px;
		background-color: skyblue;
		padding: 20px;
		border-radius: 10px;
    box-shadow: 0 0 10px black;
	}
</style>
